Positek - Leaders in Position Sensors

Submersible Position Sensors

Positek supplies a range of high-accuracy position sensors specifically designed for use in submersible applications

Manufactured from marine grade 316 stainless, with sealing up to IP68 350 bar (3500MSW), and offering superior reliability over alternative technologies such as submersible lvdt, rvdt or potentiometer, our underwater sensors are used in a wide variety of marine applications such as oil exploration, UAV, water flow gates and tidal generation systems.

With a far greater life expectancy to a waterproof potentiometer and no change in performance over time the Positek submersible range is the first choice in sensing technologies.

The submersible range includes Linear, Rotary and Tilt models all available sealed to 350bar, 5000psi (3500MSW). We also offer a range of 10bar submersible linear sensors for less demanding applications.

As with every position sensor that we supply, our submersible position sensor solutions employ non-contact technology to ensure the highest levels of reliability, even when underwater. Every submersible sensor within our range therefore operates without wear to the sensing parts, and boasts an extremely low failure rate.

Positek Ltd. is a UK based company with over 25 years of experience in manufacturing transducers such as linear position, rotary position, tilt angle, and custom position sensors as well as safe sensors, isolation amplifiers, and submersible position sensors. The company makes use of their own patented technology, the Positek Inductive Position Sensor Technology (PIPS) that has three main categories: the linear inductive position sensor (LIPS), the rotary inductive position sensor (RIPS) and the tilt inductive position sensor (TIPS).

How accurate are Positek's Submersible Position Sensors?

Positek’s submersible position sensors are more accurate when compared to the other alternatives such as the submersible linear differential transformer (LVDT), rotary variable differential transformer (RVDT), or potentiometer. The accuracy of these devices is limited due to friction which also contributes to the deterioration of your sensor.These alternatives make use of three coils, as opposed to Positek’s patented technology which makes use of a high frequency coil which uses less coil turns than an LVDT.

Their submersible sensors also make use of a non-contact technology which prevents wear and tear on the sensing technology.

They are also made of marine grade 316 stainless steel, which seals up to IP68 350 bar (3500MSW). This ensures that the product is durable enough to withstand harsh environments without compromising the sensing technology.

What kind of environments are Positek's Submersible Position Sensors suited for?

The Positek’s submersible position sensors are suited for a variety of environments. They also have a options for light or heavy duty work, depending on what you need for your project. Positek’s submersible position sensors have been used in marine oil exploration, unmanned aerial vehicles (UAVs), water flow gates, and tidal generation systems.

The submersible sensor has a range that includes linear, rotary, and tilt models that are sealed up to 350 bar, 5000psi (3500 MSW). There is also a 10 bar range for light jobs/applications.

Is it possible to have a custom Submersible Position Sensor made?

Yes, it is possible to have a custom submersible position sensor made. Just like Positek’s linear position sensor and cylinder position sensor, their submersible models have a custom design option. Their customisation focus on scaling the position sensor, however other kinds of changes can be made as well..

For the customisation to be carried out, you may contact them via their communication channels and discuss the modifications you want to have done, with their team of engineers. All the sensors are made in an onsite facility and this ensures the quality of the product and faster turn around, Positek suggest that it will take a minimum of 2 days for a custom sensor to be produced.

Submersible sensors require more stringent designs and materials considering the kind of environment they have to work in. There are more variables that could affect the reading and reliability is not just about the initial use, but also how long the accurate reading will last.

Submersible position sensors are found in many applications ranging from subsea oil drilling and exploration to desalination plants. A submersible position sensor, much like any other displacement sensor use the same working principles to detect movement and transmit an output. Positek is a leading company that supplies a range of submersible sensors used in many marine and underwater applications.

Features of Positek’s submersible position sensors

Positek’s range of submersible position sensors operates using a patented inductive technology ensuring robustness and durability. Ordinary stainless steel used in fabricating many standard sensors is not capable of withstanding the harsh chemical composition of seawater. As such, our submersible sensors are made using marine grade 316 stainless steel with hermetic sealing that complies with industry standards like IP68.

The unique fabrication and hermetic sealing of our range of submersible position sensors include rotary, linear, and tilt models with 350bar sealing able to work in submerged conditions subject to pressures of up to 5000psi. If the application is less demanding but still require extended exposure to moisture, we also have submersible sensors with 10bar sealing.

The non-contact technology of our sensors guarantees durability, reliability, and infinite repeatability due to the non-wear features of the parts. The overall acquisition cost of the assembly remains low because of a minimal need for replacements.

The measurement accuracy of Positek’s submersible sensors

While there are other position sensing technologies such as LVDT and potentiometers which may be suitable for a similar application, none can provide the same level of measurement accuracy as Positek’s range of submersible position sensors. The superiority of Positek’s sensors is because of the inductive technology which eliminates friction and the effects of wear and tear.

Traditional LVDTs use three coils wound around a ferromagnetic core. Positek’s inductive submersible sensors have a single coil assembly which uses high frequency and operates with fewer rotations than standard LVDTs. The materials used in fabricating our product also enhance the ruggedness of the mechanism, making them especially suitable for applications exposed to harsh environmental elements.Suitable applications for Positek’s submersible sensors

Submersible sensors from Positek are ideal for applications in various environmental conditions. Since our sensors are versatile, engineers have the option to install them for assemblies used in both heavy and light functions. Our submersible sensors have proven successful in even the harshest applications such as oil exploration.

Customised submersible position sensors

Positek understands that some applications require unique sensors specifications not available off the shelf. Although we have an extensive inventory of options, we also offer customisation to our clients. Submersible position sensors are customisable according to your specifications.

To begin a customisation request, you can contact our design team through any of our available communication channels. Our design engineers will collaborate extensively with you to get the exact specifications for the sensor you wish to order. Upon receiving the order details, the request is forwarded to our onsite production facility which ensures a faster turnaround and exceptional product quality. We recommend allowing at least two days to complete the order and to have it delivered to you.

Unlike many submersible sensor manufacturers, Positek has the flexibility to customise any submersible position sensor to fit your required size or specification. If our standard range is not suited to your application, please contact a member of our design team to discuss your requirements. We can then have your marine sensor assembled and dispatched in as little as 1-2 working days.